Newly-engaged Pixie Lott can barely contain her glee as she heads to jewellers hours after fiancé Oliver Cheshire popped the question

And Pixie Lott could barely contain her joy as she headed to a London jewellers on Monday alongside her new fiancé Oliver Cheshire on Monday, where she vacated the shop without her eye-popping engagement ring.

The 25-year-old Cry Me Out hitmaker was grinning from ear-to-ear as she left the store in Hatton Garden, the home of the best jewellers in the capital, while her model beau followed looking low-key in a blue padded jacket.

Yay! Pixie Lott could barely contain her joy as she headed to a London jewellers on Monday alongside her new fiancé Oliver Cheshire on Monday morning, where she vacated the shop without her eye-popping engagement ring

Pixie looked stunning as she stepped out of the store in a sheer white polo-neck layered beneath a fluffy black coat.

She paired the look with tight black jeans and boots while adding a splash of detail with a leopard print handbag with red sides.

Her blonde tresses were worn in bouncy waves falling from a centre parting as she oozed glamour and sophistication.

Inside the shop she was seen poring over the rings - perhaps preparing to resize or exchange the eye-popping diamond which she left the shop without.

Happy days: The 25-year-old Cry Me Out hitmaker was grinning from ear-to-ear as she vacated the store in Hatton Garden, the home of the best jewellers, while her model beau followed looking low-key in a blue padded jacket

Oliver meanwhile looked worlds away from his high fashion self as he sported a blue padded jacket and a baseball cap pulled low over his face.

The couple have been enjoying a blissfully happy romance over the past six years and Oliver finally popped the question, proposing to his girlfriend in the heart of London.

The male model and actress/singer both took to their Instagram accounts to share the happy news after Oliver got down on bended knee in the shadow of St Paul's Cathedral.

Congratulations! Oliver proposed to girlfriend of six years Pixie on Sunday

Pixie exclaimed it was the 'biggest surprise ever' as she showed off a dazzling diamond ring, adding simply in the photo's caption: 'so happy.'

The gorgeous blonde also shared a snap of the two kissing at Madison Restaurant & Bar in front of St Paul's as the sun set, with glasses of bubbly in hand, alongside the caption 'ahhhh'.

Oliver meanwhile joked that he'd been 'caught in the act' after a fan spotted the romantic moment, with Pixie seen wiping away tears of joy.

Sealed with a kiss: The lovebirds sipped bubbly and shared a kiss during the romantic moment at London's Madison Restaurant & Bar

Sharing the joy: Pixie, 25, exclaimed it was the 'biggest surprise ever' as she showed off a dazzling diamond ring, adding simply in the photo's caption: 'so happy'

Reposting photos of the big moment, Oliver - who began dating Pixie in 2010 - told his fans: 'Caught in the act. She only bloody said yes.'

He later added: 'What a beautiful day and the most beautiful woman in the world said yes to me on it. Lucky man.'

A representative for Pixie told MailOnline on Sunday: 'She's so excited and celebrating with her family - and it was the most wonderful surprise at St Paul's Cathedral this afternoon.'

The lovebirds' engagement comes several months after Pixie complained that she regularly faced questions about when she and Oliver would take their romance to the next level.

Spotted! Meanwhile, Oliver joked that he'd been 'caught in the act' after a fan spotted the romantic moment, with Pixie seen wiping away tears of joy in the pics which he reposted on Instagram

Smitten: He later added: 'What a beautiful day and the most beautiful woman in the world said yes to me on it. Lucky man.'

Just can't hide it! A spokesperson for Pixie told MailOnline that the star is 'so excited and celebrating with her family' after her surprise engagement

Speaking to Notion magazine last year, she said: 'Honestly, people are obsessed with it! I don't know, I always get asked "when are you getting married?"

'As soon as I started going out with Oliver I was asked it, and I still get asked in it every interview.

'I don't know why that is, maybe it's just something that people want to hear about, I don't know. I think male celebrities probably don't get asked it as much.'

Obsession: Last year, Pixie said that people seemed to be 'obsessed' with her getting married

Trust: More recently, Pixie said that her and Oliver's trust for one another has been a fundamental element on the success of their romance

More recently, Pixie gushed about her relationship with handsome model Oliver as she revealed the elements that made their romance work.

'I think every relationship is different and there are no real rules,' she told The Sun in March of this year.

'Some of my friends have dated loads of people and others are still with the first person they started going out with, a bit like me. If it feels right, you just go with it.'

Passion for fashion: Over the years, the stars have become a fixture on the fashion circuit

Pixie Lott and boyfriend Oliver Cheshire looked loved up

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And, despite their hectic schedules - which often see them working thousands of miles apart - the couple have learned the true value in trusting one another.

Pixie added: 'Either I’m away or he’s away, and those times are hard. But we’re used to it because it’s been like that since the beginning.

'We have complete trust, and I think if we didn’t have that, it would be much more difficult than it is. I’d like to think we were heading that way [towards marriage], definitely.'

Ringing in a new era: Earlier this year, Pixie said that she'd 'like to think' that she and Oliver were heading to marriage

Pixie recently reunited with her man after some time in Los Angeles, where she celebrated Halloween at Chateau Marmont in West Hollywood last weekend and attending the BAFTA Britannia Awards.

Before jetting to America, the star enjoyed a well-earned holiday in Chania, Crete, with Oliver, after starring in the West End production of Breakfast At Tiffany's.

Pixie appeared in the production as Holly Golightly at the Royal Haymarket Theatre from June to September, but the role has now been taken over by Georgia May Foote.

Growing together: The photogenic couple, pictured in July 2011, began dating in 2010